Calculate the power of Solar Edge inverter

Configuration
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1

Dear ha friends,

I´m totally new to ha and trying to realize following:

Modbus read power_readout value of Solar Edge inverter - done, works.
Modbus read power_factor value out of Solard Edge inverter - also done and works.

Now I need to calculate the real power value, with following formula:

power_value = power_readout * {10^ powerfactor }

In the configuration.yaml it looks like that, I get the modbus values power_readout and power_factor, but I don´t get any calculated value in power_value at the end.
Any ideas? Your help is appreciated!

modbus:
  - name: SolarEdge
    type: tcp
    host: 192.168.2.22
    port: 1502

    delay: 0
    message_wait_milliseconds: 300
    timeout: 5       
    sensors:
      - name: "power_readout"
        unique_id: power_readout
        unit_of_measurement: "W"
        address: 40083
        slave: 1
        data_type: "int16"   

      - name: "power_factor"
        unique_id: power_factor
        unit_of_measurement: ""
        address: 40084
        slave: 1
        data_type: "int16"   

sensor:
  - platform: template
    sensors:
        power_value:
            unique_id: power_value
            unit_of_measurement: "W"
            value_template: "{{ (states('sensor.power_readout') | int * (10 ** (states('sensor.power_factor') | int))) | round(2) }}"
2

I really got stuck guys.

Think my code is right, but my “problem” is the powerfactor coming from SolarEdge inverter. The powerfactor is a num between 0 and -3.
At the moment it is standing at -1 an I can see it in sensor status display:
But the code doesn´t let me calculate with that sensor.
When I put a number instead, it works:

Doesn´t work:

state: >- 
        {{  ((float(states('sensor.PV_Dach_raw'))) * (10 ** (float(states('sensor.Powerfaktor'))))) }}

Does work:

state: >- 
        {{ ((float(states('sensor.PV_Dach_raw'))) * (10 ** -1 )) }}

Then I also tried to use if/else to calculate, but I end with result 0, even if sensor powerfaktor is -1 .
Any suggestions?

modbus:
  - name: SolarEdge
    type: tcp
    host: 192.168.2.22
    port: 1502
    delay: 0
    message_wait_milliseconds: 300
    timeout: 5       
    sensors:
      - name: "PV_Dach_raw"
        unique_id: pv_dach_raw
        unit_of_measurement: ""
        address: 40083         # Registeradresse
        slave: 1
        data_type: "int16"       # Datentyp (z.B. int, uint, float)    

      - name: "Powerfaktor"
        unique_id: power_faktor
        unit_of_measurement: ""
        address: 40084         # Registeradresse
        slave: 1
        data_type: "int16"       # Datentyp (z.B. int, uint, float)     

template:
    sensor:
      - name: "PV_Dach"
        unique_id: pv_dach_berechnet
        state: >-
           {% if is_state('sensor.Powerfaktor', '0') %}
             {{states.sensor.PV_Dach_raw.state | float / 1}}
           {% elif is_state('sensor.Powerfaktor', '-1') %}
             {{states.sensor.PV_Dach_raw.state | float / 10}}
           {% elif is_state('sensor.Powerfaktor', '-2') %}
             {{states.sensor.PV_Dach_raw.state | float / 100}}
           {% elif is_state('sensor.Powerfaktor', '-3') %}
             {{states.sensor.PV_Dach_raw.state | float / 1000}}
           {% else %}
             0
           {% endif %}

Screenshot 2024-10-26 110933

3

Sensor entity ids no not have capitals, so this is not the right entity id. Try all lowercase (check the developer tools for the real entity id).

4

Edwin, thank you! That‘s it!
I have to use the unique_id to calculate, now it works :ok_hand:

5

Technically not the unique id either, but in this case it is the same. Glad it works.